crypto/dist/heimdal/lib/asn1/der.c

   1 /*
   2  * Copyright (c) 1997 - 2005 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the Institute nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #include "der_locl.h"
  35 #include <com_err.h>
  36 #include <sys/types.h>
  37 #include <sys/stat.h>
  38 #include <getarg.h>
  39 #include <err.h>
  40
  41 __RCSID("$Heimdal: der.c 22429 2008-01-13 10:25:50Z lha $"
  42         "$NetBSD$");
  43
  44
  45 static const char *class_names[] = {
  46     "UNIV",                     /* 0 */
  47     "APPL",                     /* 1 */
  48     "CONTEXT",                  /* 2 */
  49     "PRIVATE"                   /* 3 */
  50 };
  51
  52 static const char *type_names[] = {
  53     "PRIM",                     /* 0 */
  54     "CONS"                      /* 1 */
  55 };
  56
  57 static const char *tag_names[] = {
  58     "EndOfContent",             /* 0 */
  59     "Boolean",                  /* 1 */
  60     "Integer",                  /* 2 */
  61     "BitString",                /* 3 */
  62     "OctetString",              /* 4 */
  63     "Null",                     /* 5 */
  64     "ObjectID",                 /* 6 */
  65     NULL,                       /* 7 */
  66     NULL,                       /* 8 */
  67     NULL,                       /* 9 */
  68     "Enumerated",               /* 10 */
  69     NULL,                       /* 11 */
  70     NULL,                       /* 12 */
  71     NULL,                       /* 13 */
  72     NULL,                       /* 14 */
  73     NULL,                       /* 15 */
  74     "Sequence",                 /* 16 */
  75     "Set",                      /* 17 */
  76     NULL,                       /* 18 */
  77     "PrintableString",          /* 19 */
  78     NULL,                       /* 20 */
  79     NULL,                       /* 21 */
  80     "IA5String",                /* 22 */
  81     "UTCTime",                  /* 23 */
  82     "GeneralizedTime",          /* 24 */
  83     NULL,                       /* 25 */
  84     "VisibleString",            /* 26 */
  85     "GeneralString",            /* 27 */
  86     NULL,                       /* 28 */
  87     NULL,                       /* 29 */
  88     "BMPString"                 /* 30 */
  89 };
  90
  91 static int
  92 get_type(const char *name, const char *list[], unsigned len)
  93 {
  94     unsigned i;
  95     for (i = 0; i < len; i++)
  96         if (list[i] && strcasecmp(list[i], name) == 0)
  97             return i;
  98     return -1;
  99 }
 100
 101 #define SIZEOF_ARRAY(a) (sizeof((a))/sizeof((a)[0]))
 102
 103 const char *
 104 der_get_class_name(unsigned num)
 105 {
 106     if (num >= SIZEOF_ARRAY(class_names))
 107         return NULL;
 108     return class_names[num];
 109 }
 110
 111 int
 112 der_get_class_num(const char *name)
 113 {
 114     return get_type(name, class_names, SIZEOF_ARRAY(class_names));
 115 }
 116
 117 const char *
 118 der_get_type_name(unsigned num)
 119 {
 120     if (num >= SIZEOF_ARRAY(type_names))
 121         return NULL;
 122     return type_names[num];
 123 }
 124
 125 int
 126 der_get_type_num(const char *name)
 127 {
 128     return get_type(name, type_names, SIZEOF_ARRAY(type_names));
 129 }
 130
 131 const char *
 132 der_get_tag_name(unsigned num)
 133 {
 134     if (num >= SIZEOF_ARRAY(tag_names))
 135         return NULL;
 136     return tag_names[num];
 137 }
 138
 139 int
 140 der_get_tag_num(const char *name)
 141 {
 142     return get_type(name, tag_names, SIZEOF_ARRAY(tag_names));
 143 }